This position is open exclusively for Ukrainian residents within Ukraine (preferably Kyiv or Lviv).

We are looking for a Project / Portfolio Manager to join our Security Engineering team, responsible for numerous cybersecurity projects in miltech and defence space. In this role, you will collaborate closely with stakeholders, internal technical leaders, and engineering teams to ensure that mission-critical systems are efficiently protected, and projects are completed on time, within budget, and consistently deliver outstanding value to the customer.

Our security engineering projects are delivered as professional services and often evolve into multi-year, sophisticated joint operations with our customers. These services focus on security engineering activities aimed at assessing and improving the cybersecurity posture of software and hardware products, as well as organisational processes and practices.

The Project / Portfolio Manager, along with the Technical Project Lead, become two facilitators of this relationship, in which customers rely on us to provide peace of mind and a lower risk posture for their business.

What you’ll do #

• Collaborate closely with active military personnel on mission-critical projects, and ensure that engineering teams, security teams and non-technical stakeholders have shared expectations, understand the timelines and their next steps.
• Clarify unknown: gather project information, clarify requirements, plan milestones and timelines, ensure that deliverables are delivered during the expected timeframes.
• Communicate and cooperate: set up communication rhythms and routines with customers and the teams, assist technical project leads with planning and prioritisation (both tasks and people involved), follow up, and chase customers on non-technical matters.
• Manage several projects in parallel, adapting to their different pace, priorities, and ways of working.
• Reporting: support the team in putting together reports, timesheets, artefacts, and updates for customers. Be ready to embrace different reporting styles for different customers.
• Build connections: identify opportunities for further cooperation, and prevent hazards.
• Team wellbeing: Help us take care of the team, notice when people are overloaded or under pressure, and help support an environment where we can work effectively without burning out.

Requirements #

• 5+ years of experience in project management with IT projects (software / hardware platforms, web and mobile applications, etc).
• Understanding of software development processes (SDLC), preferably secure SDLC.
• Upper-intermediate level of English, both written and spoken.
• Strong understanding of the modern technological landscape.
• Strong troubleshooting skills and the ability to figure out ways to move projects ahead in complete chaos.
• Excellent discipline and self-organisation skills.
• Strong leadership skills with highly specialised expert teams.
• Ability to make decisions and take responsibility for the consequences of your actions.
• Ability and willingness to visit the Kyiv or Lviv office when needed for work (there are no fixed office attendance requirements, but some projects may occasionally require in-person presence).

Nice to have #

• Military experience, or experience in working with miltech / defence projects is a significant additional factor to consider.
• Understanding of information security or cybersecurity, systems engineering, robotics, etc.
• Project management certification is a good additional factor to consider.
• A desire to minimise chances for chaos ahead of time.
• A desire to automate routine things and spend time on interesting things.

Hiring Process #

1. Resume review — up to 5 business days.
2. Test task — estimated time hours 2-3.
3. Introductory meeting with Head of security engineering or Project manager.
4. Technical interview with team members.
5. Background check.
6. Offer discussion.

What to expect from us #

• We build applications for clients, write code for developers, and document how it all works — for both.
• Everyone on the team is happy to help, but we also respect each other’s time and know how to find answers ourselves.
• Tech writing isn’t our favourite task, but we do create solid technical documentation when needed, and we’re lucky to have a tech writer to help with that.
• We prefer doing things right the first time over patching things endlessly later.
• We value healthy perfectionism, a sense of beauty in engineering, and a good sense of humour.

What we offer #

• Opportunities to work across technologies and projects: cryptography, software engineering, information security, ML security controls, cryptographic protocols, hardware protection, reverse-resilient mobile apps, and web apps for millions of users.
• Quarterly performance reviews, regular one-on-one meetings with your manager, and ongoing support to help you succeed and grow professionally.
• Quarterly compensation reviews, aligning pay with performance and market benchmarks.
• Performance and reward bonuses.
• 21 business days of vacation, plus sick, mental health, and emergency days to use when genuinely needed.
• Combination of in-office and remote work as needed, flexible scheduling, and a winter slowdown period.
• Conferences, books, courses, internal knowledge sharing, workshops, writing blog posts and research papers, giving talks, and contributing to open-source parts of our products — choose what aligns with your professional goals.

Why work at Cossack Labs? #

You’ll work alongside PhDs in information security and cryptography, contributors to infosec community standards, specialists in rare security topics, and business-centric security engineers with broad experience. Some have worked in infosec since the 1990s, helping shape the industry and write the standards it relies on today.

For newcomers, we offer detailed onboarding during the first weeks. At Cossack Labs you’ll discover what works for you and what you need to learn next, developing through hands-on work on challenging problems, mentoring, and continuous learning with personal development plans to guide your growth.

Working at Cossack Labs, you’ll be at the cutting edge of technology and real-world security projects alongside highly skilled professionals who genuinely care about building a safer and more secure future.